temperature range and the giant magnetic cooling ability can be obtained after hydrogenizing process.   Description of the technical advantages:cost, which are one of the most promising magnetic refrigerant materials. The microstructure and properties of massively produced kilogram-grade hydrides are more homogeneous and stable than those of the gram-grade samples in laboratory experiment.Expected to reach the market value:as air conditioner, refrigerator, thermotank and so on. This solid cooling technique has  advantages of energy saving and  circumstance friendly.Ideal way of cooperation:Technical Transformation Technological Development